$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-resclasses.git /var/lib/mock/f40-build-2279039-55305/root/chroot_tmpdir/scmroot/gap-pkg-resclasses
Cloning into '/var/lib/mock/f40-build-2279039-55305/root/chroot_tmpdir/scmroot/gap-pkg-resclasses'...
$ git fetch origin bb9d22825ece759ab97975aaec8fbecd1b0042f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-resclasses
 * [new ref]         bb9d22825ece759ab97975aaec8fbecd1b0042f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb9d228 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild